steloflute

http://stackoverflow.com/questions/6319086/are-gcc-and-clang-parsers-really-handwritten

http://stackoverflow.com/questions/3859765/why-does-let-require-a-vector

http://stackoverflow.com/questions/4159802/how-can-i-restart-a-java-application Eclipse typically restarts after a plugin is installed. They do this using a wrapper eclipse.exe (launcher app) for windows. This application execs the core eclipse runner jar and if the eclipse java application terminates with a relaunch code, eclipse.exe restarts the workbench. You can build a similar bit of native..

요즘 뜨고 있는 Clojure 프로그래밍 언어. 하지만 Clojure 프로그램은 대개 느리다. Clojure 프로그램 최적화 기법이다. Project Euler Problem 10을 예제로 사용한다. [코드 시작] (ns Euler.core (:gen-class)) (set! *warn-on-reflection* true) (defn prime? [n] (loop [i 2] (if ( 10배 향상 (problem10b)loop를 doseq에서 일반 recur로 바꾸었다. doseq은 range로 만들어진 시퀀스를 순회하기 때문에.. 중복 코드가 있어서 매크로를 작성하였다. (C의 for 문 흉내내기) (defmacro loopwhile [init-symbol init whilep step & body] ..

http://stackoverflow.com/questions/5549319/real-world-clojure-performance-tuning-tips My personal tips: Check your algorithm first - are you incurring O(n^2) cost when it really should be O(n.log n)? If you've picked a bad algorithm, the rest of tuning is a waste of time. Be aware of common "gotchas" like the O(n) cost of traversing a list / sequence.Take advantage of nice features in Clojure, l..

http://stackoverflow.com/questions/12628286/simple-way-to-replace-nth-element-in-a-vector-in-clojure assoc works fine for that. It takes the index where to put the new value and return the newly created vector: Clojure> (assoc [1 2 3] 1 5) [1 5 3]

http://clojure.org/java_interop#Java%20Interop-Type%20Hints Type Hints Clojure supports the use of type hints to assist the compiler in avoiding reflection in performance-critical areas of code. Normally, one should avoid the use of type hints until there is a known performance bottleneck. Type hints are metadata tags placed on symbols or expressions that are consumed by the compiler. They can b..

https://groups.google.com/forum/?fromgroups=#!topic/clojure/hNyrwx3mYvQ Redirecting standard out to something. (def out (proxy [java.io.Writer] [] (close []) (flush []) (write [thing] (. (new javax.swing.JFrame (str "a" thing)) setVisible true)))) (binding [*out* out] (println "hello"))

http://unserializableone.blogspot.kr/2009/01/redirecting-systemout-and-systemerr-to.html Friday, January 02, 2009 Redirecting System.out and System.err to JTextPane or JTextArea In Swing, if you want to redirect System.err and System.out to a JTextPane or a JTextArea, you only need to override the write() methods of OutputStream to append the text to the text pane instead. The example below show..

http://ironalbatross.net/wiki/index.php5?title=Clojure_Swing Clojure Swing Jump to: navigation, search Contents 1 Clojure Swing 1.1 Stand-alone Label1.2 Inline Label1.3 Shortened with "doto"1.4 Stand-alone Button1.5 Inlined Button with simple Print action1.6 Large JPanel1.7 Panel with simple on-click event1.8 Panel with simple keyboard action1.9 Added a Menu bar1.10 Added a simple action to the ..